The Ultraflo U1000 is a permanent / fixed transit time ultrasonic flow meter. It can be supplied for line sizes of 1 – 4.5″ and is externally powered by 12 – 24 VDC. The non-intrusive nature allows for ease of installation without cutting into existing line. Standard output is pulse for volume, with optional 4 – 20 mA flow rate output. This unit is ideal for monitoring water usage.